package com.heima.user.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.sql.Wrapper;
import java.util.HashMap;
import java.util.Map;

@Service
@Transactional
@Slf4j
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService {

    @Override
    public ResponseResult login(LoginDto dto) {
        //1.正常登录

        if (StringUtils.isNotBlank(dto.getPhone())&&StringUtils.isNotBlank(dto.getPassword())) {
            //1.1根据手机号查询用户信息
            // getOne、Wrappers、是什么？.<ApUser>lambdaQuery()  .eq(）是什么？都是mp包的，::是什么？
            //eq即MybatisPlus的条件构造器Wrapper的子类的"="表述，
            //getOne是MP的IService的，条件查询，
            ApUser dbUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, dto.getPhone()));
            if(dbUser==null){
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST,"用户信息不存在");
            }
            //1.2比对密码
            String salt = dbUser.getSalt();
            String password = dto.getPassword();
            String pswd= DigestUtils.md5DigestAsHex((password+salt).getBytes());
            if (!pswd.equals(dbUser.getPassword())) {
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
            //1.3返回数据，jwt,
            String token = AppJwtUtil.getToken(dbUser.getId().longValue());
            Map<String,Object> map=new HashMap<>();
            map.put("token",token);
            dbUser.setSalt("");
            dbUser.setPassword("");
            map.put("user",dbUser);

            return ResponseResult.okResult(map);
        }else {
            //2.游客登录
            Map<String,Object> map=new HashMap<>();
            map.put("token",AppJwtUtil.getToken(0L));
            return ResponseResult.okResult(map);
        }

    }
}
